0
проблема в том, что мне сначала нужно преобразовать двухмерную в одномерную, затем найти выбранный индекс и затем снова преобразовать, а затем сохранить новый индекс. после этого я должен использовать правильный string.format, чтобы показать правильный вывод. Я просто confused = (Как преобразовать двумерный массив в одномерный?
В программе есть два текстовых поля, которые запрашивают размер «row» и «col», а затем вы нажимаете кнопку и окно списка показывает
...............................................................................................................................
Row...Col.......................................................................................................................................
1------1----Vacant ........................................................................
1......2.......Vacant...................................................................................................
1......3.......Vacant....................................................................................................................................
2------1----Vacant.........................................................................................................................
2......2.......Vacant....................................................................................................................................
2......3.......Vacant..........................................................................................................................................................
3------1----Vacant....................................................................................................................................
etc.............................................................................................................................................................
и когда я дважды щелкните на одну строку он должен сказать: «Reserved» Может кто-то поможет мне, что делать это, пожалуйста?
Это моя папка проекта здесь вы можете увидеть мои failed code и this is my assignment
Это, как программа должна выглядеть в конце 
'Created by: Hans Elias Juneby
'Started: July 10, 2010 Completed July 0, 2010
Public Class MainFrame
'''<summary>
''' Enum used for choices of showing results
''' </summary>
'''<remarks></remarks>
Private Enum UpdateOptions
ShowAllSeats 'reserved and vacant seats
ShowOnlyVacantSeats 'Only vacant seats
ShowOnlyReservedSeats 'Only reserved seats
End Enum
'Instance variables
Private bookingObj As SeatBooking = New SeatBooking()
Private showOptions As UpdateOptions = UpdateOptions.ShowAllSeats
'''<summary>
''' Default constructor
''' Initialize components and do other preparations.
''' This method is called automatically before the form is made visible
''' </summary>
''' <remarks></remarks>
Public Sub New()
' This call is required by the Windows Form Designer.
InitializeComponent()
' My initialization
InitializeControlvalues()
UpdateResults()
End Sub
'''<summary>
''' Organize initiations
''' Fill comboboxes with options (strings), set default values, etc
''' </summary>
'''<remarks></remarks>
Private Sub InitializeControlvalues()
FillUnitTypeList()
lstUnits.SelectedIndex = -1
cmbShowOptions.Items.AddRange([Enum].GetNames(GetType(UpdateOptions)))
cmbShowOptions.SelectedIndex = 0
rbtnLetters.Checked = True
' txtNumOfSeats.Text = bookingObj.GetMaxCols.ToString() 'default values
' txtNumOfRows.Text = bookingObj.GetMaxRows.ToString() 'default values
lblNumVacants.Text = String.Empty 'default values
lblTotal.Text = String.Empty 'default values
lblPercent.Text = String.Empty 'default values
End Sub
''' <summary>
''' Clear listbox, format new strings with the help of the bookingObj and
'''fill in the box.
''' </summary>
''' <remarks></remarks>
Private Sub UpdateResults()
End Sub
'''<summary>
''' Helper function that returns a string containing a string "** Reserved **" or
'''"Vacant" or no text according the value in showOptions. THe UpdateResults
''' calls this function in detecting which string to show in the listbox
''' </summary>
''' <param name="row">Input</param>
''' <param name="col">Input</param>
''' <returns>A formatted string as explained above</returns>
'''<remarks></remarks>
Private Function GetReservationStatusString()
Select Case (cmbShowOptions.SelectedIndex)
Case 0
Case 1
Case 2
End Select
End Function
'Fills values in the combobox
Private Sub FillUnitTypeList()
Dim units As String() = {"Bus Seats", "Train Seats", "Plane Seats"}
cmbUnitType.Items.AddRange(units)
cmbUnitType.SelectedIndex = 0
End Sub
Private Sub cmbShowOptions_SelectedIndexChange(ByVal sender As System.Object, ByVal e As System.GC)
showOptions = DirectCast(cmbShowOptions.SelectedIndex, UpdateOptions)
UpdateResults()
End Sub
Private Sub btnMatrix_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnMatrix.Click
Dim SeatBooking As New SeatBooking
bookingObj.GetMaxRows.ToString()
bookingObj.GetMaxCols.ToString()
lblTotal.Text = txtNumOfRows.Text * txtNumOfSeats.Text
End Sub
''' <summary>
''' Event-handler for the double-click event.
''' Reserve/cancel the seat chosen in the listbox (call bookingObj.SetRowAndCOlumnValue),
''' only if the showOption is Show ALL; otherwise, give an error message and do nothing.
''' </summary>
''' <param name="sender">sender-object from the caller</param>
''' <param name="e">EventArgs object from the caller</param>
''' <remarks></remarks>
Private Sub lstUnits_DoubleClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstUnits.DoubleClick
lblNumVacants.Text = lblTotal.Text - 1
Return
End Sub
''' <summary>
''' Event-handler method for change in the radiobutton
''' </summary>
''' <param name="sender"></param>
''' <param name="e"></param>
''' <remarks></remarks>
Private Sub rbtnLetters_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rbtnLetters.CheckedChanged
UpdateResults()
Dim A As Integer = 65
Dim myChar As Char
Dim col As Integer = 0
myChar = Convert.ToChar((A + col))
End Sub
Private Sub UpdateUnit()
'Dim strText As String = bookingObj.GetUnitName(cmbUnitType.SelectedIndex)
' lblVacantUnits.Text
End Sub
End Class
затем класс SeatBook:
'Created by: Hans Elias Juneby
'Started: July 10, 2010 Completed July 0, 2010
Public Class SeatBooking
Private array As Double() 'Declaration of the array
Private lastIndex As Integer = 0 'last filled position (lastIndex+1 = number of items
'''<summary>
''' Create (or recreate) the matrix with the given size
''' </summary>
'''<param name="rowSize">Number of rows</param>
''' <param name="colSize">Number of columns</param>
'''<remarks></remarks>
Public Sub CreateArray(ByVal rowSize As Integer, ByVal colSize As Integer)
Debug.Assert(rowSize >= 0) 'Program execution halts here in case size is <0;
array = New Double(rowSize - 1) {}
Debug.Assert(colSize >= 0) 'Program execution halts here in case size is <0;
array = New Double(colSize - 1) {}
Dim seatMatrix As Boolean(,)
seatMatrix = New Boolean(rowSize, colSize) {}
End Sub
'''<summary>
''' Calculate the total number of elements(row*col)
''' </summary>
'''<returns>The total number of elements</returns>
'''<remarks></remarks>
Public Function GetMaxCount() As Integer
End Function
'''<summary>
''' Check if a seat in a specific row and column is reserved.
''' </summary>
'''<param name="row">given row</param>
'''<param name="col">given col</param>
'''<returns>True if the seat is reserved and false otherwise</returns>
'''<remarks></remarks>
Public Function IsReserved(ByVal row As Integer, ByVal col As Integer)
End Function
'''<summary>
''' Make a new reservation or cancel an existing. This process is onde by
''' reversing the boolean value in the given position in the matrix, from true to
''' false (reverse the seat) or vice versa(Cancel the reservation)
''' </summary>
'''<param name="row">given row</param>
'''<param name="col">given col</param>
'''<remarks></remarks>
Public Sub Reserve(ByVal row As Integer, ByVal col As Integer)
End Sub
'''<summary>
''' Thenumber of rows in the Matrix
''' </summary>
''' <returns>The number of rows</returns>
''' <remarks></remarks>
Public Function GetMaxRows() As Integer
Dim colsize As Integer = MainFrame.txtNumOfSeats.Text
Dim rowsize As Integer = MainFrame.txtNumOfRows.Text
CreateArray(colsize, rowsize)
For i As Integer = 0 To array.Length - 1
MainFrame.lstUnits.Items.Add("----" & i & "---" & GetMaxCols.ToString.Length)
Next
End Function
'''<summary>
''' Thenumber of columns in the Matrix
''' </summary>
''' <returns>The number of columns</returns>
''' <remarks></remarks>
Public Function GetMaxCols() As Integer
Dim colsize As Integer = MainFrame.txtNumOfSeats.Text
Dim rowsize As Integer = MainFrame.txtNumOfRows.Text
CreateArray(rowsize, colsize)
For h As Integer = 0 To array.Length - 1
Next
End Function
'''<summary>
''' The method first finds the first vacant pos in the matrix (row, col)
''' and then calls another method MatrixIndexToVectorialIndex that determines which
''' position the element has if the matrix was rolled out into a one-dimensional
''' array. In a 3x3 matrix, the element in position (1,1) has an index 4 in
''' one-dimensional array. The method is useful when updating the listbox in the
''' GUI which contains a one-dimensional array of strings. The method determines which
''' position (row,col) in the matrix corresponds to an item (row) in the listbox.
''' </summary>
'''<returns>The index, considering the matrix as one long vector, to the first vacant
''' position (the first False value). A value -1 is returned if no vacant element is
''' found</returns>
'''<remarks></remarks>
Public Function GetFirstVacantPosition() As Integer
End Function
''' <summary>
''' Determine a corresponding index for an element at (row,col) in a one-dimensional
''' presentation of the matrix. Think of the matrix as beeing rolled out into a one-dim
''' array. In a 3x3 matrix, the element in position (1,1) has an index 4 in
''' one-dimensional array.
''' 20 11 22
''' 33 41 55
''' 60 7 99 Consider value (1,1)=41
''' The above matrix can now be represented as one dimensional array. This makes it
''' easier to update the listbox in the GUI.
''' 20 11 22 33 41 55 60 7 99 value(4)=41
''' Index 0 1 2 3 4 5 6 7 8
'''Hence, index (1,1) in the matrix corresponds to row 4 in the listbox (one-dim array)
''' </summary>
''' <param name="row"></param>
''' <param name="col"></param>
''' <returns>The new index as explained above</returns>
''' <remarks></remarks>
Public Function MatrixIndexToVectorIndex(ByVal row As Integer, ByVal col As Integer)
End Function
''' <summary>
''' Determines the index in the matrix (row,col) that corresponds to a given
''' index in a one-dim array (listbox). This method actually is reverse process of
''' the method MatrixIndexToVectorIndex (see above). The parameter row contains
''' the input, i.e. index of the element in a one-dim array. The results (row and col)
''' are saved and sent back to the caller via the ref variables row,col.
''' </summary>
''' <param name="row">Input and output parameter</param>
''' <param name="col">Output parameter</param>
''' <remarks></remarks>
Public Sub VectorIndexToMatrixIndex(ByRef row As Integer, ByRef col As Integer)
End Sub
''' <summary>
''' This function receives an index in a one-dim array (e.g. listbox) and calls
''' the method VectorIndexToMatrixIndex to fin the same position in the matrix.
''' It then calls the function Reserve to either reserve or cancel a booking.
''' (If False value is saved in the element, it reserves the seat by changing
''' the value to True, and vice-versa).
''' </summary>
''' <param name="oneDimListIndex"></param>
''' <remarks></remarks>
Public Sub SetRowAndColumnValue(ByVal oneDimListIndex As Integer)
End Sub
''' <summary>
''' Calculate the total number of the reserved seats, i.e. the total
''' number of the True values in the matrix.
''' </summary>
''' <returns>Number of reserved seats</returns>
''' <remarks></remarks>
Public Function GetNumOfReservedSeats() As Integer
End Function
''' <summary>
''' Calculate the total number of the vacant seats, i.e the total
''' number of the False values in the matrix.
''' </summary>
''' <returns>number of vacant seats</returns>
''' <remarks></remarks>
Public Function GetNumOfVacantSeats() As Integer
End Function
''' <summary>
''' Relation between the reserved seats and the total number of seats in percent.
''' </summary>
''' <returns>Percent of Reservation</returns>
''' <remarks></remarks>
Public Function PercentOfReservation() As Double
End Function
End Class
Пожалуйста, пост несколько примеров кода. Это vb.net, если так, я бы посоветовал вам добавить тег vb.net –
Можете ли вы также исправить свое форматирование? Я не знаю ни о ком другом, но на моем экране 1280 * 800, что попытка рисования не работает вообще. Я предлагаю вам сделать снимок экрана приложения, чтобы показать нам, что вы имеете в виду, нарисовать рисунок в краске (или gimp!) Или использовать другие инструменты форматирования StackOverflow. Можете ли вы также переформулировать свой вопрос? Зачем вам нужно снова конвертировать, находить и конвертировать? Проводка вашего кода была бы хорошим первым шагом, как сказал Бен. – Stephen
Но мой код не удался? ok Я постараюсь опубликовать свой код, но это alot =/ – HansEJC